Elaboration and Luminescent Properties of Eu/Tb Co-Doped GdPO4-Based Glass Ceramics for White LEDs
Elaboration and Luminescent Properties of Eu/Tb Co-Doped GdPO4-Based Glass Ceramics for White LEDs
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用于白光 LED 的 Eu/Tb 共掺杂 GdPO4 基玻璃陶瓷的制备和发光性能
DOI：
10.1111/j.1551-2916.2012.05097.x
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发表时间：
2012-04-01
影响因子：
3.9
通讯作者：
Ma, ChongGeng
中科院分区：
文献类型：
--
作者：
Guo, Hai;Li, Fang;Ma, ChongGeng
制备了含GdPO 4纳米晶的Eu/Tb单掺杂和共掺杂氟氧化物铝硅酸盐玻璃和微晶玻璃，并通过X射线衍射、透射电镜、激发光谱、发射光谱和衰减寿命等测试手段研究了其结构和发光性能。在350 nm光的激发下，出现蓝色（Eu 2+的5d -> 4f）、绿色（Tb 3+的D-5（4）-> 7 F5）和红色（Eu 3+的D-5（0）-> F-7（2））发射的组合，从而在Eu/Tb共掺杂的前体玻璃和玻璃陶瓷中实现白色发射。研究表明，Eu/Tb共掺前驱体玻璃和GdPO 4基微晶玻璃在照明和发光方面具有广阔的应用前景。
Eu/Tb single-doped and co-doped oxyfluoride aluminosilicate glasses and glass ceramics containing GdPO4 nanocrystals were elaborated, and their structural and luminescent properties were investigated by X-ray diffraction, Transmission electron microscopy, excitation and emission spectra, as well as decay lifetime measurement. Excited by 350 nm light, a combination of blue (5d -> 4f of Eu2+), green (D-5(4)-> 7F5 of Tb3+) and red (D-5(0)-> F-7(2) of Eu3+) emissions emerges to achieve white emission in Eu/Tb co-doped precursor glasses and glass ceramics. Our research shows that Eu/Tb co-doped precursor glasses and GdPO4-based glass ceramics may be applied in lighting and luminescent aspects.